Circular loom.



Patented May 4, 1909.

5 SHE-ETSSHEET 1.

A. E.y GHERNACK. CIRCULAR LOOM.

A1LIGATION FILED JULYB, 1908.

vENToR /JTTOR'NEW` A. E. GHERNACK.

' d1RGULAR.L,0oM.

APPLICATION FILED JULZ3,190B.

920,728. Patented May 4,1909;

5 SHEETS-MEET 2.

WH- N fasses' INVIENTOR4 A. E. GHERNAGK.

CIRCULAR LDOM. APPLICATION FILED JULY 3,1908.

Dateslted May 4, 1909.

5 SHEETS-SHEET 3.

n INVENTQR' SEV mmm/Veys A. E. GHERN-GK.

'GIRCULAR LOOM. APPLIoAToN FILED JULY3,190B.

Patented May 4, 1909.

5 SHEETS-SHEET 4.'

ATTQKNE YS A: E. CHERNACK.

CIRCULAR LOOM.

APPLICATION FILED JULYs,19os.

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unirse srnirns PATENT ersten ABRAHAM E. OHERNAOK, OF BOSTON,MASSACHUSETTS, ASSIGNOR TO OHIS'RNACK CIRCULAR LOOM COMPANY, OE BOSTON,MASSACHUSETTS, A CORPORATION OF MAINE.

CIRCULAR LOOM;

ne. eeones.

Specification i Letters Patent.

Patented May 4, 1909.

Application leduly 3, 1908-. Serial No.y 441,929.

To all woont it 'may concern:

'ler Loom, oi which the following is s specifi cation.

My invention relates to that clnss of circulor looms, which ereydesigned for Weavingsll kinds of tubular fabrics, such its hose, etc.,end the nifnn oh] ect of my invention `is-jto sio construct the loom esto be able to drive it,

:it eA comparatively high rute of speed, and

this without injury to the thresds, particularly the werp threads., Thisobject I ettein by the construction hereinafter de scribed.

In the accompanying drawings, Figure 'i is `orverticel section oi' ucirculer lloorn constructed in accordance with my invention.; Fig. 2 'isn plein view ol' the sume, the bobbin table being omitted;4 Fig. 3 is e)lan view of the mechine, with the 'zirbiic tule-up mechanism und itsfiume removed, togetlier'witlr. the threiid eyes und titheeup devicesfor tlre individuel werp three-ds Aliig.- 4 is e detached sectional viewol' the thread eyes und tekeup for worp threads; Fig. 5 is e vieiv oithe mechanism lor trz'insniitting motion from themzii-n slnrl't to thelebric telic-up rolls; Fig. 6 is u diagram, showing u develooment oi'the earns lor uctusting the werp tlueftd guides und the'rclstion ol'thelttter to the shuttles :ictueted by the guides;r :v1-nd Fig.- is e.verth col section illustrating :i modification.

Referring more porticulztrly to" Fig. 1, is

:i cylindriezil ironie or casing, which muy be supnorted in s verticalposition, ssshown, by regs c, o.. lt cui-ries o heur-ing B for u unrinshaft 10, to be driven in :my suituhlc wily, by ineens of :i laelt overfest :1nd loose pulleys S,- 9, Fig. 2. `Vlithin the casing A is nrotztry cuni wheel (1, driven from the shaft 10, through bevel gearing11, 12, F ig. 1. This Wheel carries in its two cyiindrit-.iil parte complates 13 und 14, with com grooves 15 und 16 respectively, to `(tot uponuntifriction rollers d? on the lower ends of the vertical Werp-threadguides D. These guides ere guided vertically in slots or grooves on theinner foce of e (.:ylindor A1 iixed on the top of the freine A, :ind theguides, which are spaced et suitable distunces spurt around the cylinlder A1 (Fig. 3) have nt their upper ends projeetionsd with eyes 17furthe pussuge ofthe Werp threads. The rollers d1 :it the lower ends ofthe guides D fece in oppositt direc tions on Aalternate guides, so thatevery other guide willbe actuated by one eem 15, and

the intermediate guides by the other' reni 16. The relations of the twocti-nis to each other will be understood by reference to Fig. 6, fromwhich it Will be seenthut is one warp 'thread guide goes up or is heldup, its imine diately adjacent guides are descending orbe-n ing helddown, forthe usuel formation of tlre sheds.

The built-up cern wheel C hes a. spindle tf turning in heli bearing E inthe brtteketBl. und hits et its upper' end ehub 32, hollowed out toreceive und support e rnrtndrel 33. This mandrelBS, which may heprevented from ,turning by rods 34 secured in the cylinder A1, ceiriesAet its upper end e forming head 35,- vfhicli is removable to permit ofthe use of diiiierent sizes oi forming heads for the Weaving of tubes ofdifferent disineters.

T he warp threads are carried by hobbins 19, Figs. 1. and 3, mountedupon an annuler table secured to the outside of the tranne, und eachwarp threed V18m-ins from its bobbin 19 to e fixed eye 2O on n bent wirew, shown es secured in the top of the cylinder A1.' Frein 2li thetlnreed'pssses to en eye 21 ot'the upper end of un oscilluting wire 22,hinged et its lower end to the guide l) :it its upper end Zi the wire Z2embraces midis guided by the curved portion of the. wir@ Iw'. Fronrtheeye 21, the wur i thread posses to the eye 1T in the upper cnil of thevertically recip1oc-.xt ing guide l) either directly or indirectlythrough :t second eye 2% (Figs. 1 :rnd :3) on the wire 22. The curve` 25of the stationery wire w is such that es the werp-three d guide D risesund tells', the consequent oscillating movement of the threud guide 21will give it loto-rol motion to the loop of thread to cxectly compensatefor the varying distance ot' the eywe- 17. from the weaving point or inother Words will tithe the sleek of the thread, und consequently uniformtension-ol' all the worp threads will be nmintuined et all times.

The Wett threads are supplied from bobbins carried in horizontalpositions on traveling shuttles S, the threads being passed throughguide eyes 31, Figs. 1 and 3, to the weaving point or forming heed wherethe weft threads are leid into the successive sheds.

' lower edges of the In the drawings d have shown six shuttles S, but ofcourse the number may be varied to suit requirements. These shuttles Sare mounted to travel 'in a circular path in a horizontal plane withinthe cylinder A1, and for this purpose the latter is provided with adovetailed race-way 26, on which the shuttles run, this race-way beingformed by pro- .and the shuttles Sy are intended to travel in thedirection of their several arrows in that view. The cams 15 and 16acting upon the guides D cause their beveled upper projections d to bearupon the beveled rear ends of the shuttles and drive them with awedgelike action forward in the direction of their arrows, and as ashuttle passes beyond the action 'of one guide D, rising or descending,another guide comes into action'. By preference, two guides are inaction at all'times on each shuttle, pressing on the upper and beveledrear of Ithe shuttle to urgethe latter forward.

The woven tubular fabric F (Fig. 1) is drawn off or taken up by feedrolls 36, Fig. 2A, which may receive their motion from the main shaft10l uhrou h any suitable transmission, such as bevel gears 37, 38, shaft39, worin 40, worm wheel 41, shaft 42, gearing 43, 44 and gears 45, 46,Figs. 1, 2 and 5. By change of gears at 43, 44, the speed may bechanged.

The machine may be constructed to weave two-ply or three-ply fabrics byusing a number of superposed shuttles S and race-ways 26,l and rovidingeach vertically reeiproeating ui e D1, Fig. 7, `with a corresponding numer of projectionsi and warp thread eyes.

I claim as my invention 1. A circular loom, comprising a frame,

Awarp-thread guides and means for reci ro catingthe same in combinationwith s uttles and a race-way therefor on the frame and means wherebylthe reciprocating thread means for driving the latter, and means forthrough the warp sheds.

2. A circular loom, comprising a frame, warp thread guides and means forreci ro eating the same, in combination with s uttles having beveledends, and a race-way for the shuttles on the frame, the thread guideshaving projections to act on the said beveled portions of the shuttlesto -drive the latter with a wedge-like action through the sheds.

8. A circular loom, comprising a frame, warp thread guides havingprojecting heads and rotary, cams tc reciprocate the threaded guides, incombination with shuttles and a race-way therefor on the frame, theshuttles having beveled portions to be acted on by4 the projecting headsof the guides to drive the shuttles through the sheds.

4. A circular loom, comprising a frame and -rotary cams, a slottedcylinder and warp thread guides in the slots of the cylinder to be actedon by the eains in combination with shuttles having beveled portions,proliections on the cylinder between the slots to form a race-way forthe shuttles and projec-4 tions on the guides to act upon the beveledportions of the shuttles to drive them through the sheds.

5. A circular loom, comprising a frame, warp thread .bobbins, warpthread guides and means for reciprocating the guides to form the sheds,in combination with shuttles, means for driving the latter,reciprocating thread eyes for the warp threads and curved guides forsaid reciprocating warp thread eyes, as and for the purpose described.

warp thread bobbins, warp t iread guides and means for reciprocating theguides to form the sheds, in combination with shuttles,

securing uniform tension of the warp threads, said means including aVfixed thread eye, a thread eye reciprocating with the warpv Vthreadguide and a curved guide for said rescribed.

In testimony whereof I have signed m'y name to this specification, inthe presence of two subscribing witnesses.

ABRAHAM E. CHERNACK.

- Witnesses:

EDWARD N. GoDrNG,

guides are caused to drive the shuttles 6. A ci 4pilar loom, comprisinga frame, 1

ciprocating eye, as and for the'purpose de f

